JP5755009B2 - エンコーダ - Google Patents
エンコーダ Download PDFInfo
- Publication number
- JP5755009B2 JP5755009B2 JP2011089728A JP2011089728A JP5755009B2 JP 5755009 B2 JP5755009 B2 JP 5755009B2 JP 2011089728 A JP2011089728 A JP 2011089728A JP 2011089728 A JP2011089728 A JP 2011089728A JP 5755009 B2 JP5755009 B2 JP 5755009B2
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- Prior art date
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- 238000012545 processing Methods 0.000 claims description 58
- 238000001514 detection method Methods 0.000 claims description 48
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- 238000000926 separation method Methods 0.000 claims description 6
- 239000011295 pitch Substances 0.000 description 28
- 238000012937 correction Methods 0.000 description 8
- 230000000737 periodic effect Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/262—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with optical projection of a pointer or a scale
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34746—Linear encoders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34776—Absolute encoders with analogue or digital scales
- G01D5/34784—Absolute encoders with analogue or digital scales with only analogue scales or both analogue and incremental scales
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011089728A JP5755009B2 (ja) | 2011-04-14 | 2011-04-14 | エンコーダ |
| US13/444,934 US9121731B2 (en) | 2011-04-14 | 2012-04-12 | Encoder having a scale with two areas in which an increasing direction of the amplitude of the energy distribution is opposite between the two areas for precisely obtaining a position of the scale |
| EP12163898.5A EP2511666B1 (fr) | 2011-04-14 | 2012-04-12 | Codeur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011089728A JP5755009B2 (ja) | 2011-04-14 | 2011-04-14 | エンコーダ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012220457A JP2012220457A (ja) | 2012-11-12 |
| JP5755009B2 true JP5755009B2 (ja) | 2015-07-29 |
Family
ID=46245799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011089728A Active JP5755009B2 (ja) | 2011-04-14 | 2011-04-14 | エンコーダ |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9121731B2 (fr) |
| EP (1) | EP2511666B1 (fr) |
| JP (1) | JP5755009B2 (fr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6032924B2 (ja) | 2011-04-13 | 2016-11-30 | キヤノン株式会社 | エンコーダ |
| JP5791340B2 (ja) | 2011-04-14 | 2015-10-07 | キヤノン株式会社 | エンコーダ |
| JP5755010B2 (ja) | 2011-04-14 | 2015-07-29 | キヤノン株式会社 | エンコーダ |
| WO2014057726A1 (fr) * | 2012-10-11 | 2014-04-17 | ソニー株式会社 | Dispositif de détection de position, barillet d'objectif et dispositif de capture d'images |
| EP2920649B1 (fr) | 2012-11-19 | 2023-03-29 | ASML Netherlands B.V. | Système de mesure de position et réseau pour système de mesure de position |
| JP6207208B2 (ja) * | 2013-04-12 | 2017-10-04 | キヤノン株式会社 | 位置検出手段 |
| JP6253320B2 (ja) | 2013-09-13 | 2017-12-27 | キヤノン株式会社 | エンコーダおよびこれを用いた装置 |
| JP6533360B2 (ja) * | 2013-10-30 | 2019-06-19 | キヤノン株式会社 | 位置検出装置及びそれを有するレンズ装置及び撮影装置 |
| JP6313571B2 (ja) * | 2013-11-12 | 2018-04-18 | キヤノン株式会社 | 位置検出装置及びそれを有するレンズ装置及び撮影装置 |
| JP2016050886A (ja) * | 2014-09-01 | 2016-04-11 | オークマ株式会社 | 光学式リニアエンコーダ |
| TWI623200B (zh) * | 2016-04-27 | 2018-05-01 | 財團法人工業技術研究院 | 定位絕對碼的解碼裝置及解碼方法 |
| US9871595B2 (en) | 2016-04-27 | 2018-01-16 | Industrial Technology Research Institute | Decoding device and method for absolute positioning code |
| US9958294B2 (en) * | 2016-06-30 | 2018-05-01 | Mitutoyo Corporation | Absolute position encoder including scale with varying spatial characteristic and utilizing Fourier transform or other signal processing |
| JP2018084462A (ja) * | 2016-11-22 | 2018-05-31 | 株式会社ミツトヨ | エンコーダ及び信号処理回路 |
| US10612946B2 (en) | 2018-05-30 | 2020-04-07 | Rockwell Automation Technologies, Inc. | Encoder system for position determination with inclined scale |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530603A (en) | 1978-08-25 | 1980-03-04 | Nippon Telegr & Teleph Corp <Ntt> | Position detector |
| US4291976A (en) | 1980-03-10 | 1981-09-29 | Sperry Corporation | Digital fiber optic position sensor |
| JPS6363916A (ja) | 1986-09-04 | 1988-03-22 | Mitsutoyo Corp | 光学式変位検出器 |
| JPS6363917A (ja) | 1986-09-04 | 1988-03-22 | Mitsutoyo Corp | 光学式変位検出器 |
| JPS6365316A (ja) | 1986-09-05 | 1988-03-23 | Mitsutoyo Corp | 光学式変位検出装置 |
| JPS6365315A (ja) | 1986-09-05 | 1988-03-23 | Mitsutoyo Corp | 光学式変位検出装置 |
| JPH01229905A (ja) | 1988-03-10 | 1989-09-13 | Mitsutoyo Corp | 変位検出器 |
| JPH0295203A (ja) | 1988-09-30 | 1990-04-06 | Matsushita Electric Ind Co Ltd | 位置合わせ装置 |
| US5069547A (en) | 1988-11-23 | 1991-12-03 | The Boeing Company | Multitrack multilevel sensing system with error detecting |
| US5699058A (en) * | 1994-03-17 | 1997-12-16 | Copal Company Limited | Absolute encoder generating phase-shifted triangular waveforms to produce multi-bit signals |
| JPH09196705A (ja) | 1996-01-23 | 1997-07-31 | Mitsutoyo Corp | 変位測定装置 |
| US6707029B1 (en) | 1999-01-22 | 2004-03-16 | Citizen Watch Co., Ltd. | Optical displacement measuring apparatus having light receiving arrays |
| US6512222B2 (en) | 2000-02-03 | 2003-01-28 | Mitutoyo Corporation | Displacement measuring apparatus |
| US6713756B2 (en) | 2000-05-09 | 2004-03-30 | Olympus Corporation | Optical encoder and optical rotary encoder |
| US6765195B1 (en) | 2001-05-22 | 2004-07-20 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for two-dimensional absolute optical encoding |
| JP2007248359A (ja) | 2006-03-17 | 2007-09-27 | Citizen Holdings Co Ltd | 位置検出装置 |
| US7521669B2 (en) | 2006-06-02 | 2009-04-21 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Multi-bit absolute position optical encoder with reduced number of tracks |
| JP2009198318A (ja) | 2008-02-21 | 2009-09-03 | Mitsutoyo Corp | 光電式エンコーダ |
| US8188420B2 (en) | 2009-11-14 | 2012-05-29 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | High resolution optical encoder systems having a set of light detecting elements each comprising a pair of complementary detectors (as amended) |
| JP5887064B2 (ja) | 2010-04-28 | 2016-03-16 | 株式会社ミツトヨ | 光学式エンコーダ |
| US8309906B2 (en) | 2010-06-10 | 2012-11-13 | Mitutoyo Corporation | Absolute optical encoder with long range intensity modulation on scale |
| JP6032924B2 (ja) | 2011-04-13 | 2016-11-30 | キヤノン株式会社 | エンコーダ |
| JP5791340B2 (ja) | 2011-04-14 | 2015-10-07 | キヤノン株式会社 | エンコーダ |
| JP5755010B2 (ja) | 2011-04-14 | 2015-07-29 | キヤノン株式会社 | エンコーダ |
-
2011
- 2011-04-14 JP JP2011089728A patent/JP5755009B2/ja active Active
-
2012
- 2012-04-12 EP EP12163898.5A patent/EP2511666B1/fr active Active
- 2012-04-12 US US13/444,934 patent/US9121731B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US9121731B2 (en) | 2015-09-01 |
| EP2511666B1 (fr) | 2019-07-03 |
| EP2511666A3 (fr) | 2014-08-20 |
| JP2012220457A (ja) | 2012-11-12 |
| US20120261561A1 (en) | 2012-10-18 |
| EP2511666A2 (fr) | 2012-10-17 |
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